JPH0741295A - Seal device of fork lift truck - Google Patents

Abstract

PURPOSE:To improve waterproofing and ventilation by constituting a seal device arranged between a hood and a counterweight, of a circumferential edge plate provided on the circumferential edge part of the hood and a seal member arranged on the extreme end of the circumferential edge plate and making contact with the drain groove of the counterweight. CONSTITUTION:This seal device 1 arranged between a hood 3 and a counterweight 2 is constituted of a circumferential edge plate 11 provided on the circumferential edge part of the hood 3 into a nearly L-shape in the inside direction, and a seal member 13 arranged on the extreme end part of the circumferential edge part 11 and contacting with the drain groove 20 of the counterweight 2. The circumferential edge plate 11 is provided with a ventilation hole 12 on the parallel plane with the hood 3, and the seal member 13 is provided with a hollow elastic part 132 in one body with a felt part mounted on the circumferential edge plate 11. Hereby when the hood 3 is closed, the drain groove 20 and the seal member 13 are perfectly closely contacted with each other, and water is stored in the drain groove 20 and drained outward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device for a forklift truck having excellent waterproofness and air permeability.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a sealing device 8 for a hood 3 of a forklift truck 99 is arranged between the hood 3 and a counterweight 2.
The sealing member 13 of the sealing device 8 is attached so as to be in close contact with the drainage groove of the counterweight 2. The hood 3 has a bearing portion 31 for opening and closing.
(FIG. 9). On the other hand, an electric component 21 is disposed inside the front of the counterweight 2. The electric parts 21 include a controller and a transformer.

By the way, the hood 3 is always closed except when maintenance and inspection of the electric parts 21 and the like arranged inside the counterweight 2 are performed. Then, due to the seal member 13, the inside of the counterweight 2 is
It is sealed. This prevents water 4 and the like from entering the counterweight 2. Therefore, as shown in FIG. 7, the water 4 is the drainage groove 2 of the counterweight 2.
After once accumulating at 0, it flows out from the drain groove end portions 201 at both ends thereof. In this way, the electric component 21 in the counterweight 2 is protected by the sealing device 8.

However, the electric component 21 generates heat when energized. Therefore, the temperature inside the sealed counterweight 2 may rise to 80 to 90 ° C. Due to this heat, the electric component 21
Will be adversely affected. To solve this problem, for example, Japanese Patent Laid-Open No. 3-25044 proposes an improved seal member. Further, conventionally, a sealing device 8 as shown below has also been proposed.

That is, the sealing device 8 is arranged between the hood 3 and the counterweight 2 in the forklift truck 99 as shown in FIGS. 8 and 9.
The sealing device 8 has a plate 8 vertically provided on the back surface of the hood 3 inward of the peripheral edge of the hood 3.
1 and the seal member 13 joined to the lower end of the plate 81
And consists of. The plate 81 has a ventilation hole 82 between itself and the hood 3.

Further, the seal member 13 is composed of a welt portion 131 and a hollow elastic portion 132 which are fitted to the plate 81. Further, the edge rubber 1 is attached to the peripheral edge of the hood 3.
4 is fitted. Next, when the hood 3 is closed, the water 4 accumulates between the seal member 13 and the drain groove 20 of the counterweight 2. Further, even if the hood 3 is closed, the heat inside the counterweight 2 is dissipated to the outside because the sealing device 8 has the ventilation hole 82.

[0007]

However, the above sealing device 8
As shown in FIG. 8, the vent hole 82 is provided perpendicularly to the hood 3 and the drain groove 20. Therefore, in a situation where a large amount of water drops strongly from the lateral direction or obliquely above, such as during a car wash or a thunderstorm, precipitation may fall into the counterweight 2 through the ventilation holes 82. Therefore, the water 4 falls on the electric components 21 in the counterweight 2 and is adversely affected. SUMMARY OF THE INVENTION The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a sealing device for a forklift truck that is excellent in waterproofness and breathability.

[0008]

SUMMARY OF THE INVENTION The present invention is a sealing device disposed between a hood and a counterweight in a forklift truck, the sealing device having a substantially L-shaped inward direction at a peripheral portion of the hood. It comprises a peripheral plate provided and a flexible sealing member which is arranged at the tip of the peripheral plate and contacts the drainage groove of the counterweight, and the peripheral plate has a ventilation hole in a plane parallel to the hood. The seal device for a forklift truck is characterized by having:

In the present invention, the most remarkable thing is that
The peripheral plate is formed in a substantially L shape inward of the hood, that is, inward of the outer peripheral edge of the hood, and has a ventilation hole in a plane parallel to the hood. That is, the substantially L-shaped peripheral plate includes a vertical plate portion connected to the hood and a flat plate portion parallel to the hood, and the vent hole is formed in the flat plate portion.

The shape of the vent hole is not limited. Also,
The ventilation holes are preferably provided in a band shape along the outer peripheral edge of the hood. Further, the vent holes may be provided in a single place or plural places. Further, the seal member is configured to be completely adhered to the drainage groove provided in the counterweight. The sealing member is made of, for example, flexible plastic or rubber.

Further, it is preferable that a portion of the seal member, which comes into contact with the drainage groove of the counterweight, has a hollow shape. Next, the peripheral plate is preferably formed by integrally bending the peripheral portion of the hood inward.
In this case, the tip of the hood is rounded due to the bending. Therefore, no edge rubber is required at the tip of the hood.

Next, as the peripheral plate, it is preferable that a plate formed in a substantially L shape in advance is joined along the peripheral part of the hood. Welding, bonding, etc. are used as the joining method. In this case, it is possible to use different materials for the hood and the peripheral plate. In addition, it is easier to process than bending the hood.

[0013]

In the sealing device of the present invention, the ventilation hole is provided in the plane parallel to the hood. Therefore, even if a large amount of water falls on the counterweight of the forklift truck, the water hits the vertical plate that is hung from the hood, falls, collects in the drainage groove of the counterweight, and is discharged to the outside. In addition, even during the above-mentioned precipitation, the ventilation holes are provided on the flat plate portion parallel to the hood.
The above-mentioned precipitation does not fall inside the counterweight through this vent hole.

Further, since the peripheral plate has the ventilation holes, the heat inside the counterweight can be easily dissipated. As described above, according to the present invention, there is provided a seal device for a forklift truck having excellent waterproofness and air permeability.

[0015]

【Example】

Example 1 A sealing device according to an example of the present invention will be described with reference to FIGS.
Will be explained. As shown in FIG. 1, the sealing device 1 of this example is arranged between a hood 3 and a counterweight 2 in a forklift truck. The sealing device 1
Is a peripheral edge plate 11 provided inwardly in a substantially L-shape in the peripheral edge of the hood 3, and a flexible member which is disposed at the tip of the peripheral edge plate 11 and contacts the drain groove 20 of the counterweight 2. The peripheral plate 11 has a ventilation hole 12 on a plane parallel to the hood 3 while being made of a flexible sealing member 13.

The peripheral edge plate 11 is formed by bending the peripheral edge portion of the hood 3 inward in an integrated manner into a substantially L-shape, and a vertical plate portion 116 in which the peripheral edge portion of the hood 3 is vertically suspended.
It is composed of a flat plate portion 117 provided with the vent holes 12. A rubber seal member 13 is provided at the tip of the flat plate 117 of the peripheral plate 11. The seal member 13 includes a welt portion 131 for attaching to the peripheral plate 11 and the drain groove 2.
It has a hollow elastic portion 132 that contacts zero. Hollow elastic part 1
The reference numeral 32 is formed in a hollow shape so as to be completely in contact with the drainage groove 20. Others are the same as the above-mentioned conventional example.

Next, the function and effect of this example will be described. The hood 3 is attached to the vehicle body by a bearing 31 so as to be openable and closable. In the closed state of the hood 3, the drain groove 20 and the seal member 13 are completely in close contact with each other at their abutting portions. Therefore, the water is collected in the drainage groove 20 and discharged to the outside without entering the inside of the counterweight 2 or the like.

The vent hole 12 is formed by the peripheral plate 11
Is provided only on the flat plate portion 117 of the above, and the vertical plate portion 116 is not provided with a vent hole. Therefore, even if a large amount of water is poured from obliquely above due to a car wash, a thunderstorm, etc., these water come into contact with the vertical plate portion 116 of the peripheral edge plate 11 and fall into the drainage ditch 20 to cause the drainage. It is discharged to the outside by the groove 20. Even during the above-mentioned precipitation, the vent holes 12
Since it is provided only on the flat plate portion parallel to the hood 3, the water from above the obliquely above does not drop into the counterweight 2.

Further, in this embodiment, the seal member 13 and the vent hole 12 are used.
The peripheral edge plate 11 for forming the hood is formed by bending the tip of the hood 3. Therefore, the tip of the hood 3 is rounded. Therefore, from the viewpoint of safety when the hood 3 is opened and closed, the edge rubber that is conventionally attached is unnecessary. As described above, the sealing device of this example has excellent waterproofness and breathability.

Embodiment 2 In this embodiment, as shown in FIGS. 4 and 5, a substantially L-shaped peripheral plate 110 is joined along the peripheral portion of the hood 3. The peripheral plate 110 is provided with the vent holes 12 in advance and is bent and formed into a substantially L shape, and is joined to the hood 3 by welding. This peripheral plate 110 is
The vertical plate portion 116 and the flat plate portion 117 are included. Flat plate part 117
The ventilation hole 12 is provided in the. An edge rubber 14 is provided at the tip of the hood 3. Others are the same as in the first embodiment.

Next, the function and effect will be described. Since the sealing device 1 of this example is configured by joining the hood 3 and the peripheral plate 110, it is possible to manufacture them with different materials. Furthermore, the processing is easier than in the first embodiment. Other than that, the same effects as in the first embodiment can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of a sealing device according to a first embodiment.

FIG. 2 is a rear perspective view of the hood in the sealing device according to the first embodiment.

FIG. 3 is a rear perspective view of the vicinity of the peripheral plate in the sealing device of the first embodiment.

FIG. 4 is a sectional view of a sealing device according to a second embodiment.

FIG. 5 is a rear perspective view of the vicinity of the peripheral plate in the sealing device according to the second embodiment.

FIG. 6 is a side view of a forklift truck.

FIG. 7 is a plan view of the counterweight with the hood closed.

FIG. 8 is a cross-sectional view of a sealing device in a conventional example.

FIG. 9 is a rear perspective view of a hood in a conventional sealing device.

FIG. 10 is an exploded perspective view of a sealing device in a conventional example.

[Explanation of symbols] 1,8. ． ． Sealing device, 11, 110. ． ． Peripheral plate, 12. ． ． Ventilation holes, 13. ． ． Seal member, 2. ． ． Counterweight, 20. ． ． Drainage, 3. ． ． Hood, 99. ． ． Forklift truck,

Claims (3)

[Claims] 1. A sealing device arranged between a hood and a counterweight in a forklift truck, wherein the sealing device is provided at a peripheral portion of the hood.
The peripheral plate is formed in a substantially L shape inwardly, and a flexible sealing member is provided at a tip portion of the peripheral plate and contacts the drainage groove of the counterweight. A sealing device for a forklift truck, which has a ventilation hole in a plane parallel to the hood. 2. The sealing device for a forklift truck according to claim 1, wherein the peripheral plate is formed by integrally bending a peripheral part of the hood inward. 3. The sealing device for a forklift truck according to claim 1, wherein the peripheral plate is joined to a peripheral part of the hood.